DOI: 10.1007/s00531-014-1067-9
Scopus记录号: 2-s2.0-85027936539
论文题名: Sedimentary and hydrological studies of the Holocene palaeofloods in the Shanxi-Shaanxi Gorge of the middle Yellow River, China
作者: Li X. ; Huang C.C. ; Pang J. ; Zha X. ; Ma Y.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 104, 期: 1 起始页码: 277
结束页码: 288
语种: 英语
英文关键词: China
; Holocene
; Palaeoflood
; Slackwater deposit
; Yellow river
Scopus关键词: climate variation
; data set
; Holocene
; loess
; paleoclimate
; paleoflood
; paleohydrology
; river channel
; soil profile
; stratigraphic correlation
; China
; Jing River
; Shaanxi
; Shanxi
; Yellow River
英文摘要: Holocene slackwater deposits along the river channels were used to study the magnitude and frequency of the palaeofloods that occurred prior to gauged and historical data sets all over the world. Palaeohydrological investigations along the Shanxi-Shaanxi Gorge of the middle Yellow River, China, identified palaeoflood slackwater deposits (SWDs) at several sites along the cliffs bordering the river channel. The SWDs are intercalated within Holocene eolian loess-soil profiles and clastic slope deposits. The palaeoflood SWDs were differentiated from eolian loess and soil by the sedimentary criteria and analytical results including magnetic susceptibility and particle-size distribution, similar to the flood SWDs in 2012, which indicated that these well-sorted palaeoflood SWD beds were deposited from the suspended sediment load in floodwaters. They have recorded the extraordinary palaeoflood events which occurred between 3200 and 3000 a BP as dated by the optically stimulated luminescence method in combination with pedostratigraphic correlations with the previously studied Holocene pedo-stratigraphy in the Yellow River drainage basin. Manning slope-area calculations estimate the peak discharged for these palaeoflood events to range from 43,290 to 49,830 m3/s. The drainage area of the study site is 489,900 km2. It is 2.0–2.5 times the largest gauged flood (21,000 m3/s) that has ever occurred since 1934. These events also occurred on Yellow River tributaries, including the Weihe, Jinghe and Qishuihe Rivers. These flood events are therefore considered to be a regional expression of known climatic events in the northern hemisphere and demonstrate Holocene climatic instability. This study provides important data in understanding the interactions between regional hydro-climatic systems and global change in semiarid and subhumid regions. © 2014, Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85027936539&doi=10.1007%2fs00531-014-1067-9&partnerID=40&md5=d184fe4d1a943d6689e2f92020f7b01f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70436
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department of Geography, Shaanxi Normal University, Xi’an, Shaanxi, China; Department of Urban–Rural Development and Management Engineering Science, Shangluo University, Shangluo, Shaanxi, China
Recommended Citation:
Li X.,Huang C.C.,Pang J.,et al. Sedimentary and hydrological studies of the Holocene palaeofloods in the Shanxi-Shaanxi Gorge of the middle Yellow River, China[J]. International Journal of Earth Sciences,2014-01-01,104(1)